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TreeDropDownList.aspx：
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<%@ Page language="c#" Codebehind="TreeDropDownList.aspx.cs" AutoEventWireup="false" Inherits="TowDropDownList.TowDropDownList" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >
<HTML>
<HEAD>
<title>TreeDropDownList</title>
<meta content="Microsoft Visual Studio 7.0" name="GENERATOR">
<meta content="C#" name="CODE_LANGUAGE">
<meta content="JavaScript" name="vs_defaultClientScript">
<meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema">
<script language="javascript">
var Wantcount;
var Groupcount;
Groupcount=0;
Group = new Array();
<asp:Literal ></asp:Literal>
function changelocation1(locationid)
{
document.submit.DirectionList1.length = 0;
document.submit.WantList1.length = 0;
var locationid=locationid;
var i;
var flag;
var j;
for (i=0;i<Groupcount; i++)
{
if (Group[i][0] == locationid)
{
flag = true;
for (j =0;j<document.submit.DirectionList1.length;j++)
if (document.submit.DirectionList1[j].value == Group[i][1])
{
flag = false;
break;
}
if (flag)
document.submit.DirectionList1.options[document.submit.DirectionList1.length]
= new Option(Group[i][1], Group[i][1]);
}
}
}
function changelocation11(locationid, direction)
{
document.submit.WantList1.length = 0;
var locationid=locationid;
var i;
var flag;
var j;
for (i=0;i<Groupcount;i++)
{
if (Group[i][0] == locationid && Group[i][1] == direction)
{
flag = true;
for (j=0;j<document.submit.WantList1.length;j++)
if (document.submit.WantList1[j].value == Group[i][2])
{
flag = false;
break;
}
if (flag)
document.submit.WantList1.options[document.submit.WantList1.length]
= new Option(Group[i][2], Group[i][2]);
}
}
}
</script>
</HEAD>
<BODY ms_positioning="GridLayout">
<form >
<TABLE style="Z-INDEX: 101; LEFT: 184px; POSITION: absolute; TOP: 144px">
<TR>
<TD style="WIDTH: 115px; HEIGHT: 17px" align="middle">求职意向：</TD>
<TD style="HEIGHT: 17px"><asp:dropdownlist ></asp:dropdownlist></TD>
</TR>
</TABLE>
</form>
<script language="javascript">
changelocation1(document.submit.SourceList1.options[document.submit.SourceList1.selectedIndex].value);
changelocation11(document.submit.SourceList1.options[document.submit.SourceList1.selectedIndex].value,document.submit.DirectionList1.options[document.submit.DirectionList1.selectedIndex].value)
</script>
TreeDropDownList.aspx.cs:
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using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
namespace TowDropDownList
{
/// <summary>
/// TowDropDownList 的摘要说明。
/// </summary>
public class TowDropDownList : System.Web.UI.Page
{
protected System.Web.UI.WebControls.Literal Want;
protected System.Web.UI.WebControls.DropDownList SourceList1;
protected System.Web.UI.WebControls.DropDownList DirectionList1;
protected System.Web.UI.WebControls.DropDownList WantList1;
protected System.Web.UI.WebControls.Literal Group;
private void Page_Load(object sender, System.EventArgs e)
{
if (!IsPostBack)
{
DataSet ds = new DataSet();
ds.ReadXml(Server.MapPath("DataSource.xml"));
for(int i = 0;i <ds.Tables[0].Rows.Count ;i++)
{
DataRow dr = ds.Tables[0].Rows[i];
Want.Text += String.Format("Group[Groupcount++] = new Array(\"{0}\",\"{1}\",\"{2}\");\n", dr["v_Source"],dr["v_GroupName"].ToString(), dr["v_title"].ToString());
if (SourceList1.Items.FindByText(dr["v_Source"].ToString()) == null)
{
SourceList1.Items.Add(dr["v_Source"].ToString());
}
}
}
}
#region Web Form Designer generated code
override protected void OnInit(EventArgs e)
{
//
// CODEGEN：该调用是 ASP.NET Web 窗体设计器所必需的。
//
InitializeComponent();
base.OnInit(e);
}
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器修改
/// 此方法的内容。
/// </summary>
private void InitializeComponent()
{
this.Load += new System.EventHandler(this.Page_Load);
}
#endregion
}
}
DataSource.xml:
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<DataSource>
<Data>
<v_Source>计算机类</v_Source>
<v_GroupName>软件</v_GroupName>
<v_title>程序员</v_title>
</Data>
<Data>
<v_Source>计算机类</v_Source>
<v_GroupName>软件</v_GroupName>
<v_title>系统分析员</v_title>
</Data>
<Data>
<v_Source>计算机类</v_Source>
<v_GroupName>软件</v_GroupName>
<v_title>项目经理</v_title>
</Data>
<Data>
<v_Source>计算机类</v_Source>
<v_GroupName>硬件</v_GroupName>
<v_title>网络工程师</v_title>
</Data>
<Data>
<v_Source>计算机类</v_Source>
<v_GroupName>硬件</v_GroupName>
<v_title>计算机维护</v_title>
</Data>
<Data>
<v_Source>计算机类</v_Source>
<v_GroupName>数据库</v_GroupName>
<v_title>数据库开发</v_title>
</Data>
<Data>
<v_Source>计算机类</v_Source>
<v_GroupName>数据库</v_GroupName>
<v_title>数据库管理</v_title>
</Data>
<Data>
<v_Source>行政/管理类</v_Source>
<v_GroupName>行政</v_GroupName>
<v_title>文秘</v_title>
</Data>
<Data>
<v_Source>行政/管理类</v_Source>
<v_GroupName>行政</v_GroupName>
<v_title>助理</v_title>
</Data>
<Data>
<v_Source>行政/管理类</v_Source>
<v_GroupName>管理</v_GroupName>
<v_title>总经理</v_title>
</Data>
<Data>
<v_Source>行政/管理类</v_Source>
<v_GroupName>管理</v_GroupName>
<v_title>部门经理</v_title>
</Data>
<Data>
<v_Source>行政/管理类</v_Source>
<v_GroupName>管理</v_GroupName>
<v_title>总监</v_title>
</Data>
</DataSource>
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